06/05/13 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526- 0288 Page 5 of 112
Modulex E8 Controller and BCM
Operations and Maintenance Manual
7.7.3 AERCO BMS II/ACS Modbus Control and Monitoring .................................... 75
7.7.4 Modbus Remote Setpoint Control and Monitoring ............................................. 75
7.7.5 EMS or BAS Set-Up As Master to BCM Controller Slaves ............................... 75
7.8 Multiple Modulex Boiler Heating Mode – Utilizing a BMS II or ACS ........... 75
7.8.1 Sequence of Operation (Example: Four-Modulex boiler installation) ................ 76
8. E8 CONTROLLER MENU LISTINGS ................................................ 78
8.1 DISPLAY Menu ............................................................................................... 78
8.2 USER Menu ..................................................................................................... 80
8.3 TIME PROGRAM Menu .................................................................................. 82
8.4 EXPERT Menu ................................................................................................ 85
8.5 GENERAL Menu ............................................................................................. 89
8.5.1 DATE / TIME Sub-Menu ................................................................................... 90
8.5.2 SERVICE Sub-Menu .......................................................................................... 90
9. BCM MODBUS AND ADDRESS ASSIGNMENTS .............................. 94
9.1 BCM Modbus Communication & Support Requirements ........................... 94
9.1.1 Function Codes .................................................................................................... 94
9.1.2 Modbus Support Requirements ........................................................................... 94
9.2 BCM Controller Standard Holding Register Assignments ......................... 95
9.2.1 BCM Controller Standard Input Register Assignments ...................................... 95
9.2.2 BCM Controller Standard Holding Register Assignments ................................. 95
10. E8, BCM, AND BMM FAULT CODES ............................................. 102
10.1 Processing and Clearing Fault Codes ........................................................ 103
10.2 Fault Codes and Descriptions ..................................................................... 104
10.2.1 E8 Controller Fault Codes ............................................................................. 105
10.2.2 BCM (Boiler Communications Module) Fault Codes ................................... 106
10.2.3 BMM (Burner Management Module) Fault Codes ....................................... 108
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